update assistance needed

Hi guys, I thought I'd be better off to ask some pros before I go off to brick my Wii, so here goes.

I need to update my 3.0E console to 3.2E in the smoothest way possible to be able to play SSMB and Mariokart. I'm running a wiikey 1.9g and I have Super_Smash_Bros_Brawl_USA_Wii-WiiZARD (patched) and Mario_Kart_PAL_WII-MOMENT at my disposal. Unfortunately I don't have access to a working wifi-connection so I cannot use the regular online update.

I read that Fire_Emblem_Radiant_Dawn_PAL_MULTi5_Wii-WiiPONS has the 3.2E update in it, so maybe I should grab that, update with it and then run the other two games? Or flash the chip to 1.9s and accept the mariokart update? Or perhaps any other approach?